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Princess|Lab Grown|IGI

1.50ct F SI1 Princess Lab Grown Diamond

ID • F/SI1 • IGI LG623405979

Shape and cutting style on the report: Princess cut

Certificate IGI LG623405979

Diamond specifications and retailer prices

From $270 SGD
As of November 6, 2026
Save $1,088 SGD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,358 SGD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.5ct lab-grown princess diamond

This 1.5ct lab-grown princess sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG623405979 or 623405979. Listed at 16 retailers as of November 6, 2026, with prices from $270 to $1,358, a $1,088 spread on the same certified stone. Brilliant Earth lists it at $1,358. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623405979
Dimensions6.04 × 5.98 × 4.60 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.04 mm5.98 mm1.50 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623405979
Side View
Table 76.0%Crown 45.6°Girdle: ThickPavilion 40.5°Culet: NoneDepth 76.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $1,358 SGD|Low: $270 SGD|High: $2,127 SGD|Avg: $812 SGD|-36.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 3$270 SGD
Retailer 12$314 SGD
Retailer 5$336 SGD
Retailer 6$340 SGD
Retailer 2$427 SGD
Retailer 4$566 SGD
Retailer 14$578 SGD
Retailer 7$614 SGD
Retailer 13$663 SGD
Retailer 10$1,080 SGD
Retailer 11$1,084 SGD
Retailer 9$1,089 SGD
Retailer 8$1,342 SGD
Brilliant Earth$1,358 SGD

39 data points across 14 retailers

16 retailers$270 SGD to $1,358 SGD

A
Cheapest Retailer
-
$270 SGD
A
Retailer 2
-
$304 SGD
View
Final sale: no returns
A
Retailer 3
-
$314 SGD
View
A
Retailer 4
-
$336 SGD
View
Retailer 5
-
$340 SGD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$427 SGD
View
Retailer 7
-
$566 SGD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$578 SGD
View
B+
Retailer 9
-
$592 SGD
View
A
Retailer 10
-
$614 SGD
View
B+
Retailer 11
-
$663 SGD
View
B
Retailer 12
-
$1,080 SGD
View
B
Retailer 13
-
$1,084 SGD
View
B
Retailer 14
-
$1,089 SGD
View
B
Retailer 15
-
$1,342 SGD
View
Most Expensive
B
Brilliant Earth
10774028A · Nov 6
$1,358 SGD
$1,060 USD
View
15 more retailers have this diamond
Prices start from $270 SGDSave up to $1,088 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.50ct Princess
$270 SGD